Odor Dispersion

Isengard · Dec 9, 2011

Anyone has any info on odor dispersion? Specifically in a small grow tent with a fair amout of negative pressure. The air intake is passive, the out take is a inline blower with a carbon filter.
"How much odor will propagate through the passive intake?" Is there a specific air pressure that will minimize odor dispersion?

Someguy15 · Dec 9, 2011

Isengard said:
Anyone has any info on odor dispersion? Specifically in a small grow tent with a fair amout of negative pressure. The air intake is passive, the out take is a inline blower with a carbon filter.
"How much odor will propagate through the passive intake?" Is there a specific air pressure that will minimize odor dispersion?

View attachment 1927027

If the fan is always on, you will be fine. If not, smells can leak.

Isengard · Dec 9, 2011

Thanks Someguy15, but are you sure? Don't odors propagate at the molecular level? If so, some smell will leak through any opening, even though there is pressure towards the out take mounted filter.

Someguy15 · Dec 9, 2011

Nope. As long as the air is moving you will be fine, speaking from experience. For that tent I would find a 4" inline and 4" filter... ur looking for a system between 150cfm-200cfm. It takes time for the scent to build to strong levels so the fan constantly scrubbing keeps the concentration of smell particles down in the tent which lowers dispersion rate...so really even 50cfm would probably be enough.

cannabineer · Dec 9, 2011

Isengard said:
Thanks Someguy15, but are you sure? Don't odors propagate at the molecular level? If so, some smell will leak through any opening, even though there is pressure towards the out take mounted filter.

If you're asking about gas diffusion, it's slow ... less than a foot per minute and maybe much less. Smells move through a room almost entirely by convection. So no odor should fight its waypast any sort of tangible negative-pressure bottleneck whatsoever. cn

Isengard · Dec 9, 2011

cannabineer said:
If you're asking about gas diffusion, it's slow ... less than a foot per minute and maybe much less. Smells move through a room almost entirely by convection. So no odor should fight its waypast any sort of tangible negative-pressure bottleneck whatsoever. cn

Thanks cannabineer! That was my doubt.

Someguy15 said:
Nope. As long as the air is moving you will be fine, speaking from experience. For that tent I would find a 4" inline and 4" filter... ur looking for a system between 150cfm-200cfm. It takes time for the scent to build to strong levels so the fan constantly scrubbing keeps the concentration of smell particles down in the tent which lowers dispersion rate...so really even 50cfm would probably be enough.

Thanks again Someguy15. The blower is a 253 cfm one with a potentiometer, more than enough.

Thanks again for the fast and helpful replys. :-)

Odor Dispersion

Isengard

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Someguy15

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Isengard

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Someguy15

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cannabineer

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Isengard

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